Merging and Splitting Cells

Cells are very basic creatures with some severe limitations. For
example, all of the cells in a row share the same height. A cell can’t
be taller than the cell next to it, which can pose some serious design
problems.

Consider Figure
7-22 at top, for example. In the top figure, the left cell
(containing the gear graphic) is much taller than the top banner to
its right. In fact, it’s as tall as both banners to its right, as shown in the
bottom figure. Ideally, you’d want the gear graphic cell to straddle
the two cells to its right, as shown in the second banner example. In
such situations, Dreamweaver provides several ways of persuading cells
to work well together.